Clamshell Design means the top of the box folds open and lies flat, providing easy access to artwork. This facilitates the transfer of stored items from one side to the other for a smooth and professional presentation and minimizes physical handling.

Reinforced Hinge on long side means the box can withstand repeated opening and closing for long lasting use

Lining can be ordered in white or black to best showcase your work and suit your preference

Close Tolerance construction protects against dust, light, pests, and environmental pollutants

Made in USA with rigorous quality control standards

Dimensions reflect interior measurements. To determine the outside dimensions, add 1/2 inch to the length and width and 1/4 inch to the height.

Acid-Free - Yes

Lignin-Free - Yes - lignin content is measured by the phloroglucinol test with a Kappa number of 5 or less.

Buffered - Yes - contains a minimum of 3% calcium carbonate (CaCO3) with a pH range 8-9.5

P.A.T. passed the Photographic Activity Test

Materials box core is Kappa binder’s board (.100), a bookmaking board with no glue between layers, lined with 80 lb. acid-free and lignin-free paper

Materials covered in black library quality F-Grade Buckram (poly-cotton) with a moisture-resistant, 100% aqueous acrylic coating

Adhesive is pH balanced and buffered, <.0008% sulfur content

Durable Hinge reinforced with a layer of archival mat board and cambric

Visit the Custom Portfolios page if you want to order a custom box size or color (minimum of 5).

Visit the Custom Products page if you are looking for a color that we don't list.